Dr. Camille Parmesan, a professor of Biology at The University
of Texas at Austin, has been internationally recognized for her work on
global warming. Most
of her work has centered around the effects of climate change on wildlife,
particularly on butterflies.

"Where an animal exists, the area that it occupies
on this planet, is often driven by climate. So, as North America warms,
a lot of species are going to tend to move up towards Canada and up the
mountains."

To learn more about Dr. Parmesan's research on the effects
of climate change on animals, view the clip.